Hi, On Fri, 17 Jul 2009 18:12:45 +0900, Jiro SEKIBA wrote: > Hi, this is a candidate patch to cleanup write_super callback. > > VFS layer calls ->write_super callback periodically. However, > it looks like that calling back is ommited when disk I/O is busy. > And when cleanerd is runnig, disk I/O tend to be busy thus > nilfs superblock is not synchronized as nilfs designed. > > To avoid it, syncing superblock by nilfs thread instead of VFS pdflush. > > These patches show the basic idea. > > First one is a just clean up for nilfs_sync_fs. writing superblock > must be done very end of the function. > > Second one will separeate condition for syncing superblock and alternative > superblock as a inline function. > > Third one is the actual patch to sync the superblock in nilfs internal thread. > Because the conditions in nilfs_write_super are using seconds, I used > it as well in the patch. However, it might be good to use jiffies instead > of using get_seconds. > > > fs/nilfs2/segment.c | 13 ++++++++++++- > fs/nilfs2/super.c | 16 +++++++--------- > fs/nilfs2/the_nilfs.h | 10 ++++++++++ > 3 files changed, 29 insertions(+), 10 deletions(-)
First, thank you very much for your help! Recently, I'm pushed for time and I feel a desperate need for help just even to maintain this project. I'll look into each of them a few moments later. Thanks, Ryusuke Konishi > -- > Jiro SEKIBA <[email protected]> _______________________________________________ users mailing list [email protected] https://www.nilfs.org/mailman/listinfo/users
